To perform this task, the Synrad CO2 laser was set up with an FH Series marking head and installed an 80 mm focusing lens, which provided a 116-micron (0.005”) diameter beam with a 0.8 mm (0.032”) depth of focus.

Using the WinMark ProTM laser marking software, an eight-digit code was created using “Simple”, one of WinMark’s twelve built-in stroke fonts. For Power, a duty cycle percentage corresponding to nine watts was set and then a marking Velocity of nine inches per second (IPS). With these parameters, the characters, measuring only 0.82 mm (0.032”) high, were marked in a cycle time of 0.35 seconds.